package 参数传递;

//基本数据类型

public class test01 {
    public static void main(String[] args) {
        int x=100;
        System.out.println("调用前"+x);
        change(x);
        System.out.println("调用后"+x);
    }

    public static void change(int x) {
        x = 200;
    }
}
